FURN (METAL)

Ferrous Metals

Composed mainly of iron with small additions of other metals or substances

Wrought Iron

Iron with traces of silicate, easily worked and is tough and ductile (decorative work, screens and gates)

Cast Iron

Iron with small amounts of carbon, silicon, sulfur, etc (cylinder blocks, piston rings, vice/vise bodies, fire backs, manhole covers)

Mud Steel

Iron with up to 0.3% carbon (general purpose metal, bars, rods, sheets, rolled section and angle form)

Stainless Steel

Steel with chromium and nickel (cutlery, furniture, frames)

Tool and Alloy Steel

Composition of varied by addition of different elements such as nickel, chromium, copper and manganese to molten steel

Copper-bearing Steel

High resistance to corrosion

Non-Ferrous Metals

Contain little or no iron

Aluminum

Lustrous, silver-white, magnetic, lightweight metal that is very malleable, has a good thermal and electrical conductivity

Copper

Pure metal, lustrous, reddish-brown metal, highly ductile and malleable

Lead

Pure metal, soft, malleable, heavy metal, easy to cut and work, fitted over uneven surfaces

Zinc

Pure metal, perforated zinc for air vents, etc

Tin

Pure metal, lustrous white, soft and malleable metal having a low melting point, unaffected by exposure to air

Alloy

Combination of two or more metals and other substances

Bronze

Copper with tine

Duralumin

Aluminium with copper and other metals

Brass

Copper with zinc

Age-hardening

three step heat treatment used primarily for non ferrous alloys and stainless steels where the material is heated to a single phase region, quenched to form a supersaturated solid solution and then alloyed to age either naturally at room temperature or artificially at an elevated temp , a type of dispersion strengthening that forms a coherent precipitate

Brittleness

The tendency to crack or break; the opposite of elasticity

Conductivity

The ability of an object to transfer heat or electricity to another object.

Ductility

The ability of a substance to be drawn, pulled, or extruded through a small opening to produce a wire

Elasticity

The ability of a material to bounce back after being disturbed

Fusibility

The ability of a material to change into a liquid or molten state when heated to its melting point

Hardness

The resistance of a mineral to being scratched

Malleability

The ability of a substance to be hammered or rolled into sheets

Tenacity or Cohesion

The ability to resist a pulling force

Work-hardening

Also known as strain hardening or cold working, this is the process of toughening a metal through plastic deformation.

Coating (Organic)

A coating material is applied on a metallic substrate, application of liquid or powder coating material, laminating with plastic films

Coil Coating

Continuous coating of a metal strip

Backing Coat

Single coating of any type with no particular requirements for appearance, malleability, corrosion protection, etc. usually on the reverse side of the coated product.

Chemical Conversion Coating

Treatment of a metal with chemical solutions by dipping or spraying to build up an oxide film containing chromates or phosphates

Priming

Application of a priming paint often pigmented with a corrosion inhibitor

Single Coat System

A primer with special properties regarding adhesion and corrosion for post-painting application

Multiple Coat System

Comprising a primer or a base coat

Organic Coating

Dry paint film of the coated product or the organic film metal laminate

Film Coating

Organic film applied to a substrate

Metallic Coating

Applying a thin coating of an expensive anti-corrosive metal (Chrome Plate / Nickel Plate / Bronze Plate / Silver Plate / Zinc Plate)

Chemical Brightening

Improve the optical reflectivity of a surface

Chemical Polishing

Immersion in a solution of chemical reagents

Degreasing

Removal of oil or grease, usually by a suitable organic solvent or an aqueous detergent

Etching

Roughening of the surface of a metal by overall or selective dissolution acid or caustic media

Pickling

Removal of a thin surface layer of a metal by chemical action

Electrochemical Means

A chemical change accompanying the passage of an electric current

Electrochemical Brightening

Improve the optical reflectivity of a surface

Electropolishing

Making it anodic in an appropriate electrolyte

Anodized Metal

An electrolytic oxidation process in which the metal is converted to a mainly oxide coating having protective, decorative or functional properties

Clear Anodized Metal

A substantially colourless, translucent anodic oxidation coating

Color Anodized Metal

Anodised metal coloured either during anodising or by subsequent colouring precesses

Integral Color Anodized Metal

An appropriate (usually organic acid based) electrolyte which produces a coloured coating during the anodising process itself

Electrolytically Colored Anodized Metal

An anodic oxidation coating that has been coloured by the electrolytic deposition of a metal or metal oxide into the pore structure

Dyed Anodized Metal

An anodic oxidation coating coloured by absorption of dye-stuff or pigments into the pore structure

Combination Color Anodized Metal

An anodic oxidation coating that is coloured by electrolytic colouring or produced by integral color anodising followed by absorption dyeing

Interference Color Anodized Metal

An anodic oxidation coating coloured by means of optical interference effects

Bright Anodized Metal

A high specular reflectance as the primary characteristic

Protective Anodizing

Protection against corrosion or wear is the primary characteristic

Decorative Anodizing

A decorative finish with a uniform or an aesthetically pleasing appearance

Architectural Anodizing

An architectural finish to be used in permanent, exterior and static situation

Hard Anodized Metal

The anodic oxidation coating has been produced with wear and/or abrasion resistance

Sealing

Treatment of anodic oxidation coatings on metal to reduce porosity

Cold Impregnation

Treatment of anodic oxidation coatings on metal to plug the pores and reduce the absorption capacity of the coating by chemical processes

Significant Surface

Part of the product covered or to be covered by the coating

Powder-coating

A collared powder that is given a positive electric charge. powder is sprayed onto the metal and the electrostatic charge allows the powder to stick to the metal part, baked in a kiln to fuse the powder to the metal surface. finished surface will not corrode.

Annealing

Heating metal to restore it to its softest possible working state

Bluing

Treating steel to improve its corrosion-resistant

Casting

Production of metal shapes by pouring molten metal into moulds

Extruding

Forcing malleable materials through holes to produce bars, sections or tubes

Forging

Shaping hot metal by hammering

Hardening

Producing maximum hardness in high carbon steel by heating it to bright cherry red, then quenching it in water or brine

Pressing

Forming sheet metal to shape

Spinning

A fast revolving sheet of ductile metal is forced over a wood or metal form

Tempering

Removing some of the brittleness from steel

Drawing

Pulling ductile metals through holes in a plate, to reduce their cross-sectional areas

Mechanical Method

Drilling a hole in the pieces of metal to be joined, then inserting and fastening nuts and bolts, rivets or screws

Soldering and Brazing

Permanent connection in metals by applying molten alloy between the joint faces

Welding

Extremely strong means of joining metals